<template>
    <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
const echarts = require('echarts')
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

export default {
    mixins: [resize],
    props: {
        className: {
            type: String,
            default: 'chart'
        },
        width: {
            type: String,
            default: '100%'
        },
        height: {
            type: String,
            default: '350px'
        },
        autoResize: {
            type: Boolean,
            default: true
        },
        chartOption: {
            type: Object,
            required: true
        }
    },
    data() {
        return {
            chart: null
        }
    },
    watch: {
        chartOption: {
            deep: true,
            handler(val) {
                // this.setOptions(val)
            }
        }
    },
    mounted() {
        this.$nextTick(() => {
            this.initChart()
        })
    },
    beforeDestroy() {
        if (!this.chart) {
            return
        }
        this.chart.dispose()
        this.chart = null
    },
    methods: {
        initChart() {
            this.chart = echarts.init(this.$el, 'macarons')
            // this.setOptions(this.chartOption)
            this.chart.resize()
        },
        setOptions(chartOption) {
            this.chart.setOption(chartOption)
            this.chart.setOption({
              xAxis: {
                data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
                boundaryGap: false,
                axisTick: {
                  show: false
                }
              },
              grid: {
                left: 10,
                right: 10,
                bottom: 20,
                top: 30,
                containLabel: true
              },
            tooltip: {
              trigger: 'axis',
              axisPointer: {
                type: 'cross'
              },
              padding: [5, 10]
            },
            yAxis: {
              axisTick: {
                show: false
              }
            },
            legend: {
              data: ['expected', 'actual']
            },
            series: [{
                name: 'expected',
                smooth: true,
                type: 'line',
                data: expectedData,
                animationDuration: 2800,
                animationEasing: 'cubicInOut'
              },
              {
                name: 'actual',
                smooth: true,
                type: 'line',
                itemStyle: {
                  normal: {
                    color: '#3888fa',
                    lineStyle: {
                      color: '#3888fa',
                      width: 2
                    },
                    areaStyle: {
                      color: '#f3f8ff'
                    }
                  }
                },
                data: actualData,
                animationDuration: 2800,
                animationEasing: 'quadraticOut'
              }]
            })
        }
    }
}
</script>
